Battery pack



FIG. 1 is a top isometric view of a battery pack showing my new design;

FIG. 2 is a bottom isometric view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures show portions of the battery pack, whichform no part of the claimed design.

CLAIM The ornamental design for a battery pack, as shown and described.